Shock-absorber.



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1,249,210. specification of Letters Patent. Patented Dec. 4, 1917.

. Application filed February 1, 1917. Serial No. 145,892.

To all whom t'tmay concern.- Some suitable means is employed for secur- Beit known that I, S ms E. Sannsason, a citizen of,the United States, and a resident of Town Creek in the county of Lawrence and State of A abama, have invented a certain new and. useful Improvement in Shock- Absorbers, of which the following is a specification. n

n One of the principal objects of; the invention is. to provide an improved shock absorber ada ted for use in connection with road vehic es, particularly automobiles, so designed that, while it will not revent the springs of the vehiclefrom yiel ing to the rev hness and unevenness of the road, it

boun ing, and hence will cause. the sprin to come ack to their normal position wit out any unpleasant jerkor jar, thus preventing wear and tearon the car and'at the same time adding greatly to the'comfort of the passen rs, a

Anot er object of the invention is to rovide'an improved shock absorber whic is adjustable to take up rebound in cars of various wei ht andnnder various oads- Still another object of the invention is to provide an improved shockabsorber of the class described which will be extremelsimple, durable, ,eiiicient in operation, an inexpensive to menu factors.

With theseand, other objects in view which will become apparent as the descri tion proceeds, the invention resides in t e construction, combination, and arran' ment of parts hereinafter'.-more fully escribed and claimed ,farid illustrated inathe accompan ing drawing, in which like characters o reference 1ndicate" like arts throughout the severalifigures of wh ch- Figure 1 represents a; view n elevation of a shock absorber conatructedaecording tomy invention, showing. the same in place on one of the axles of a car; a

Fig. 2 represents atop lan view, thereof; Fig. 8 na'presentsv aview in section taken vertically and transversely through the deviee v v Fig. 4 represents ,an enlarged elevational view'of the adjustable actuating means for the pawl.

' Referring more particularly to the drawing, 5 indicates theaxlef'o f an automobile on which the shock absorber is mounted.

revent the springs from-violently replates or disks 13. Intermediate the ada ted to rotate inan opening provided in the ase plate 7 of the casing, the outer end titi of the pin being reduced as at 9 and jount at naled for rotation in a collar 10 which sets within an opening provided in the outer plate 11 of the casing. The portion of pin A between the head 8 and reduced portion 9 is squared $9.11!; 12, and fitting on this squared portion at spaced intervalsapart, and rotatable with the pin, are the friction plates 13 are disposed the ratchet plates 14, such plates being rotatable relatively to the pin A, and being equipped at their peri' heries peripheries of the friction lever and collar is a spring washer 16, and a nut 17 isthreaded on the outer end of the pin Whnit isdesiredto increase the frictiotial enga ement between thefriction plates 18 an the ratchet plates 14, the nut 17 is tightened up whereby to ti hten the washer 16 against'the coll-er, and enee incil'ease the frictional engagement of the said P ates. V

Extending thr'ou h the casing below the pin A and beyond t e periphery of the disks, 1s a shaft C which carries a pawl 18, adapted to bemoved as the shaft is oscillated into and out of engagement with the ratchet teeth 15 on disk or plate-14, The outer end of'shaft C extends beyond the casing, and

with ratchet teeth 15 which extend s ightly has fixed theretoa plate 19 provided on its Loosely mounted on the shaft above the plate 19 is an adjustable lever in the nature of a plate or disk 21 having an eye 22 on one side and having a ti opposite side, said fin er being with 'a downturned toot 2ft adsp ipped t os nger 23 provided on its What no shock or jar 'w cxcessi vc ooncussi i grit and dust, hut. also from rust net with the series of teeth 20 in retaining the plate 21 in adjusted position relatively to the plate 19. A nut 25 threaded upon the outer end of shaft C against the plate 21 serves to bind tho letter in tion. Connecting the outer end of lever B w th the eye a; on plain ill, Is a sprmg'it,

which sining is adopted to more the shaft C as the ever B is moved, for shifting the pawl 18 into and out of engagement- \vlth vehicle body to the axle, springs, the

The. lever or plate '21 is so adjusted relatively to the plate 20 thnt.

the ordinary movements of the vehicle, as transmitted to the lever B, will not-effect engagement of the pawl 18 with the teeth on the ratchet disks. When, however, under the influence of an excessive contraption of the vehicle springs, the body of the vehicle moves downwardly to a greater extent than usual, the shaft C will he turned enough to engage the pawl with the teeth on vthe ratchet disks, and when the ,Yehiele body starts to move upwnrdlynnder the influence of the rebound of the springs, the ratchet disks will be held against-rotation with the friction plates 13, and hence these plates will rotate relatively to the ratchet disks, and the frictional retardation thus encountered byserve to tone. down and body, so

the lates ].3 will modify the rebound of the vehicle ill be felt by the pars sengcrs. As the lever B moves again into normal position, the spring 27 will. Slllftllltl shaft C 2n such direction to move the pawl 18 away from the ratchet teeth, where: by to again allow movement. of the ratchet disks with the friction disks. It will of no' rse he understood that during the movemints of the lever B through its normal path, the ratchet disks 1.4., being 't'rictionnlly engaged hy the friction disks 13, willmore with these disks, so that the normal action of the. vehicle springs will in no we} cc-retarded. 1t is only" on the rehl'nnn'l, after an on er? the springs, that the held by the-pawl against to soften and torednwn uulchot disks are rotation, whereby the rebound.

The housing or cash-2g" light enough will be tlnn'onghly protected, not only from and l'l'fision. I

' Although I have desr'rillml the nrnlerrwl t-inhorlilm-ul' oil" my invention. tn mnkisuch hanges in the consl' runtir-m, cmnlnnntlon, mid.

adjusted posh-- may be briefly,

on hp and down move to hold g z'i'cnse, so that. i l: ports;

T unrv deslre of parts mounted on the pin, seid 'i'nteiiet ing" provided with ratchet teeth thereof, as ,-do not -depert=frpmtheg'spirit of plate may be adjunted eircnmferentinlly of ;theshaft, a lever mounted on the 15in for actuating the said pm," and a sprlng connected atone end \\-iththe'-"saidplate adjacent the'pe'riphe'ry thereof, 'an'dnt its op'po site end' with the sz id -lever adjacent, the outerend of the latter. I

2. In a shock absorber, the; combination of neesin'g, pin rot'zttiibly mounted therein, friction disks 'mo'imtd for rotation with the pin, ratchet di'sks" frictionally engaged between. the friction" diz'ksend loosely beyond the peripherypf the frictiori-di'ke, a. slmft..=mo1mted for "rotgit-io n" Below the said pin,-a pawleqrried on the 's'hlntt a'n'd "rInovable; thereby ate and oufi'of engngemnt with the ratchet teeth, a" plate inoun'tedlon the shaft for actuating" the slime,

-ne rcbythe cumferentia'lly of the shaft, aleverimountd on-jt-he pin for-actuating, seid 'pin, and n spring connected atone end with the. -s air1 plate adjacent"the'='pei'ipliery thereof; and at its other end with the said lever'nd acent the outer 'end; cf'th''l'atterg -.3. In :1 shock ubhorh'ei', the combination :1 pin, means fof'roti tiihly' subgiorting, the pin, a ratchet" dislfiloosely rround ing the 'plIL' 'SHlC l rntcii'ct iiisltbeing 7 fojvided' with ratchet teethon 'it"peri ihery,- rneens moi? able with the pii' -for frict" nglly e'n aging tin-ratchet disk, n naivl tin-ratchet dikk-flaind 'sidniite to into and out of engnfcinent w th the'rntchct teeth, av plate forfnctneting the pawh siiid pl'zrtohf-ing ndjiisifnhlii aho'utthe nxi$ 01} 1' tntion of the-"pawl, 'a lever inounted enthe pin for :ictunting the int i connected at one end with the plate beyon lhc' axis "ot'rotn'tion"of" the ninth and-at its Ineuns plate may he zidjnsted' cirrotation of the pin.

y extending thereu ed; ryond; moied rus tar, and a sprin igu- 4. In :1 chock"nl'iorlier, the 'cornhinntiou with |ntclict-teetl1 rotatable relatively to n' j-utchct, dink, provided the pin,- means carried by the in for frictionally eng: ing the ratchet isk, a lever mounted on t i e pin for actuating the latter, a pawl movable into and out of engagement with the teeth on the ratchet disk a lever adjustable relatively to the pawl for actuating said. pawl, and means connecting the two levers whereby motion may be imparted to the secondsaicl lever from the first said levee 5. In a shock absorber, the combination of a rotatable pin, a lever mounted on the {pin for oscillating said pin, a ratchet disk oosely surrounding the pin, means carried by the pin and movable therewith for frictionally engaging the ratchet disk, means tlioreiigaging the ratchet disk for holding the some againet rotation when the pin is lever for actuating the last, Sui

moved in one direction beyond certain limits, and means connected" ith -the Said 6. In a shock absorbenftheeofn in a pin mounted for .[oscil letio mounted on'the Pin'for' actuating th 1', a plate with re ation to which the pin is movable, means movable with the pm for frictionally engaging the plate, e'pawl movable into engagement wlth the plate for holding the sald plate against movement when the pin is moved beyond certain limits in one direction, and means connected with said lever for actuating the pawl.

SILAS E. SANDERSON. Witnesses:

J. M. HoUsToN, C. G. 

